What are hlp file? / hlp file introduction / hlp file description

The file extension “.js” stands for JScript, such as 01.js. It’s developed by Microsoft in 1996, but its stable release is 9.0/March 2011 with typing discipline of dynamic, weak and duck. It is mainly implemented for Active Scripting and JScript.NET, supporting Microsoft Windows operating systems. The filename extension includes .js, .jse, .wsf, .wsc (.htm, .html, .asp). You can learn more details about it on Microsoft’s official website: msdn.microsoft.com/library/hbxc2t98.aspx

Microsoft uses JScript as a dialect of the ECMAScript standard which is used in Microsoft’s Internet Explorer. So if anything wrong goes on it, your Internet surfing may be influenced.

Possible error messages

Since 01.js is directly related to the Windows operating system,
if it is accidentally deleted or got corrupted due to some malware or virus, the normal performance of your PC would be negatively influenced,
and annoying error messages will keep showing up and disturbing your work or entertainment.

For example, when you’re working with Microsoft Word, a pop-up says “Sorry, the component required by this action does not exist”;
when you’re surfing the Internet with your browser, an error messages says “Can’t find the WinHelp file.”

Or when you’re trying to access Windows Help for instructions to solve troublesome situation,
it tells you “The Windows Help has malfunctioned due to corrupted registry entries”. Considering .hlp files are not quite commonly-seen, not like file formats including img, doc, rmvb, txt and pdf,
so in major cases, many users have no idea how to solve the issue.

The following tutorials are the basic professional and safe operations on Windows.
They will help you get rid of the awkward situation, you can feel free to try them one by one. As you can see we put the “Re-install your system” option last, because it takes much more time than others do. If for some reason the procedures failed to deliver the desired effects,
you can choose to use our recommended tool in the bottom of this page.

Specific Solutions of fixing 01.js error

Cleanup and repair damaged Windows registry

Delete the corrupted and redundant registry keys and repair those needed for system’s normal running. Firstly you need to access the Windows Registry Editor:

Windows 7 user: Start > enter “regedit”

Windows 8 user: Charms bar on the right side > enter “regedit”

And if you want to do the repair, you can download a new related registry file and double-click it to re-write the registry information into the system, or download a repair tool.

Scan and remove possible malware or virus infection

Viruses may be cleaned out by your antivirus software, but when it comes to malware, you may not able to count on it. Try to uninstall it with regular means (Control panel > Uninstall a program > default uninstall wizard > delete the registry entries), or use a tool to forcibly and safely remove it.